The solubility of ozone in aqueous solutions of sulfuric, phosphoric, and perchloric acids

Abstract

The solubility of ozone in pure water and aqueous solutions of sulfuric, phosphoric, and perchloric acids was determined at 20°C. An increase in the concentration of H3PO4 and HClO4 (to 14.8 and 9.5 M, respectively) caused a monotonic decrease in the solubility of ozone. The solubility of ozone in sulfuric acid was minimum at a 12 M concentration; the solubility then increased and, in 17.9 M H2SO4, reached almost the same value as in pure water. The ratio between the concentrations of O3 in solution and the gas phase was 0.276 in pure water, 0.122 in 12 M H2SO4, and 0.265 in 17.9 M H2SO4. The results obtained are compared with the available literature data.